Adjustable liquid-atomizer.



R. SGHORR.

ADJUSTABLE LIQUID ATOMIZER.

APPLIUATION FILED APR. s,

Patented Sept. 23, 1913.

coLUMBlA PLANnanAvll co4. WASHINGTON. n. c,

IINI

STATES ATIINT FFIQE.

ROBERT SCHORR, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO MOORE-SCOTT IRON WORKS, OF SAN FRANCISCO, CALIFORNIA, A CORPORATION 0F CALIFORNIA.

ADJUSTABLE LIQUID-ATOMIZER.

To all whom it may concern Be it known that I, Ronnn'r Sonoma, a citi zen of the United States, residing at lthe city and county of San Francisco and State of California, have invented certain new and useful Improvements in Adjustable Liquid- Atomizers, of which the following is a specification.

The present invention relates to a novel atomizer for the spraying of liquid mechani cally, e'. e. under pressure and without the aid of steam or compressed air, as a fuel burner for use in connection with furnaces generally; the object being the production of a spraying or atomizing device of simple construction, inexpensive as to manufacture, efficient and economical in its operation, and one wherein an adjustment within given limits may be etleeted to vary the quantities of discharge without disturbing the arrangement of the associated parts relative to the furnace to which the atomizer is attached.

'Ihe improved atomizer comprises a novel construction of a holder and regulatingI means applied thereto, a longitudinally adjustable atomizing plug within the holder, straining means for removing foreign matter from within the liquid fuel as supplied to the atomizing plug, and a nozzle tip secured to the outer end of the holder and through which the atomized liquid is delivered directly into the furnace.

`For the illustration of the invention there is shown in the drawings one form of a practical embodiment thereof as preferred in connection with the boilers of sea going vessels for the generation of steam, although it will be understood that the invention is not so restricted in its application, nor is the same limited to the precise construction and arrangement of the associated working; instrumentalities hereinafter shown and described.

To comprehend the invention, reference should be had to the accompanying sheet of drawings wherein- Figure l is a vertical sectional view of the improved atomizer disclosing the atomizingz, plug adjusted to full open position. Fig. 2 is a similar view illustrating the atomizinp,`

Specification of Letters Patent.

Application filed April 5, 1912.

Iatented Sept. 23, j 913.

Serial No. 688,792.

plug in a partly closed position to reduce the quantity flow of liquid fuel therethrough, said view disclosing` a modified form of adjusting' means for the atomizing plug. Fie'. 3 is a detail view of the atomizin); plitgr detached from the atomizer.

In the drawings, thc numeral 1 is used to designate any suitable form of a casting; provided with an inlet 2 to which is secured one end of an oil supply pipe, also provided with an outlet i?) from which extends a tubular body lthrough which the liquid fuel passes, said body being` preferably screwed into the outlet 3 so as to be readily attached to and detached therefrom. lVithin the castingr 1 and extended within the inner end of the tubular body fitted therein is situated a strainer 5, the circumferential flange G of which is held against a circumferential shoulder 6 of the castingl by means of a perforated plate 7 fitted therein. The purpose of said strainer is obvious, the same being to break up the liquid fuel, flowing; toward the atomizing;` plug' and to remove therefrom sediment and such foreign matter as would otherwise tend to clog or obstruct. the outlet passa tres of the atomizer. The said strainer is fitted into the castingr through an insertion opening 7 formed therein, which is closed by a plug 8.

To the outer or free end of the tubular body 1lis secured an atomizing or nozzle tip 9, the threaded extension 9 thereof screwing into the internally screw threaded end of the said body, a non-leaky joint beiner formed by means of a packing ring 10 interposed between the end of the said body and the exterior circumferential shoulder 11 of the nozzle tip 9. The nozzle tip 9 is provided with a centrally disposed outlet port 12, and the under face of said tip is recessed, as indicated at l2, in such a manner as to provide a. cone shaped surface for directing' and leading' the atomized oil or liquid fuel toward the outlet port or orifice 12 of the nozzle tip, the outer wall of the said orifice beineangularly inclined opposite to the wall of the recess 13. Within the extension 9 of the nozzle tip 9 is fitted for longitudinal movement a co-axial cylindrical atomizing body or plug 14, the same being provided with one or more small vertical channels 0r bores 14, which, near the outer end of the plug, are turned sidewise or approximately at right angle, as indicated at 14, in order that the fluid jets passing through the said plug may be directed outwardly to impinge tangentially upon the inside wall 15 ofthe enlarged chamber 15 of the nozzle tip 9. rlfhe cylindrical extension 9 of the nozzle tip serves as a guide bearing for the atomizing plug 14, which plug is `adjusted longitudinally relative to the said tip by means of the adjusting stem or spindle 16, which screws into the said plug'. This stem or spindle, which is of small diameter, extends through the tubular body 4, and strainer 5, the screw threaded end 17 thereof passing Vthrough a screw threaded bore 17 in the perforated plate 7 and extending` within the hollow plug 8. In order to adjust the position of the atomizing plug 14 relative to the nozzle tip 9, it is only required to remove the plug 8, when the stem may be turned to move the atomizing plug in and out of the extension 9 to partly cover and uncover the tangential ports or channels 14 to decrease or increase the quantity flow of the atomized liquid under pressure into the mixing chamber 15 of the nozzle tip.

e In Fig, 2 of the drawings, the perforated plate 7 is omitted, likewise the circumferential shoulder 5', the flange 6 of the strainer resting against the inner end' of the tubular body 4, andthe end of the stem or spindle 16 extending into a socket 18 of the plug 8', being held thereto by means of a tap screw 18. j As thus connected it is only required to turn the screw plug 8 in order to adjust the position of the atomizing plug to vary the quantity flow of the liquid fuel into the chamber 15 of the nozzle tip. While two ways of accomplishing this adjustment of the atomizing plug have been illustrated and described, it is obvious that various other means may be resorted to. However, preference is given to the construction disclosed in 1 of the drawings, once made the same cannot be varied witl out removing the plug 8, thus providing against accidental displacement of the adjusted parts.

When the atomizing plug is adjusted to full open position, the discharge ends of the tangential ports 14 stand clear of the inner wall of the nozzle tip extension 9, Fig. 1 of the drawings, while when the flow of the liquid fuel is reduced' by an inward adjustment of the atomizing plug 14 the discharge ends of the said ports 14 are partly closed by the inner wall of the nozzle tip extension 9', Fig. 2 of the drawings. On the said atoinizing plug being moved inward its full vdistance the discharge ends of the ports 14 will be fully closed by the inner wall of the extension 9 and the flow of the liquid will be entirely cut of.

1n operation the tubular bodyis at all times lilled with liquid under pressure which escapes into the chamber 15 in fine jet streams through the channels or ports of the atomizing plug and by reason of the disposition of these ports and the pressure under which the liquid is held the same is delivered to the outlet orifice of the nozzle tip with a whirling action, escaping therefrom in the form of a tine atomized spray, the angle of inclination of the wall surrounding the said outlet orice causing the spreading outwardly of the atomized liquid stream.

By simply removing the nozzle tip 9 and the plug 8 all the parts are accessible for cleaning or other purposes, and inasmuch as no disk or other part is interposed between the atomizing plug and the nozzle tip, there is no interference with the free flow or discharge of the atomized liquid from the nozzle tip. y

I am aware that various devices have been placed into use for atoinizing liquil oil or fuel under pressure for the discharge of the atomized liquid with a whirling motion, such de- Y vices having been patented for a number of years, and no claim is made herein to the same broadly; the present invention being restricted to the details of construction by means of which such action is produced.

1n Fig. 2 of the drawings, the nozzle tip is illustrated as constructed in'sections instead of an integral structure, that'is, within the tip 92A is fitted a perforated atomizing plate 19 which constitutes the central portion of the nozzle tip. However, preference is given tothe construction of nozzle tip illustrated in Fig. 1 of the drawings. The

part 1 of the atomizer has been referred tok as a casting, but such expression is employed to designate any form of a headV member provided with an inlet and outlet forV the oil and to which the tubular body is united. Having thusdescribed the invention what is claimed as new and desired to be protected by Letters Patent is :-V n

1n an atomizer for liquid fuel, the combination with a casting provided with an inlet and outlet opening for the liquid to be atomized, of a tubular body extended from the outlet opening o-f the casting, a perforated nozzle tip provided with an interior chamber secured to the outer endtof the tubular body, a co-axial cylindrical atomizing plug provided with fluid passages ex-V tended tangentially at their outer ends, said plug being longitudinally movable relative to the nozzle tip, a lstrainer within the casting, a perforated plate for holding the strainer in position, a stem extended from In testimony whereof I have signed my neme to this specifieatlon 1n the presence oit 10 two subscribing Witnesses.

ROBERT SCI-IORR.

seid plug through the tubular body, strainer and perforated plate for adjusting the position of the atomizing plug to Vary the quantity of liquid passing therethrough to the nozzle tip, an insertion opening Within the Casting, and Ineens for closing said opening to protect the adjustable stem for the atomizing plug.

Witnesses:

N. A. Aonnn, D. B. RICHARDS.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. G. 

